Uniform Excitation Pattern

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The UniformExcitation pattern allows the user to apply a uniform excitation to a model acting in a certain direction. The command is as follows:

pattern UniformExcitation $patternTag $dir -accel $tsTag <-vel0 $ver0>

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$patternTag	unique tag among load patterns
$dir	direction in which ground motion acts
	1 - corresponds to global X axis
	2 - corresponds to global Y axis
	3 - corresponds to global Z axis
$tsTag	tag of the TimeSeries series defining the acceleration history.
vel0	optional, the initial velocity, default=0.0.

NOTES:

1. The responses obtained from the nodes for this type of excitation are RELATIVE values, and not the absolute values obtained from a multi-support case.

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Code Developed by: fmk